Yes you can write patterns to the card and save them on the card. There are two Electribe EMX-1's. Smart Media version and SD card version. Smart Media is hard to find the cards and the card readers these days and after a few more years you will not be able to buy them. SD version is OK and you can use any SD card, under 32 GB as Blue Monster says.

Write directly to the card without using the internal memory first? I did not know that! I'll have to go give it a try. I've always saved as an internal pattern first, then saved to card. New tricks for old dogs, eh?